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Home Q & A Board Science-Related Homework Help High School Level Science
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Aliya1 Aliya1
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6 years ago
#13. All Vulcans have pointed ears (P) and a right-sided heart (R) which are dominant over Earthling alleles of rounded ears (p) and a left-sided heart (r). Both Vulcans and Earthlings are homozygous for each allele.

Mr. Spock has a Vulcan father and an Earthling mother.

Which of the following is true about Mr. Spock’s genotype in relation to the genes for ear shape and heart sidedness?
Select one:
a.
Ear Shape   Heart Sidedness
Heterozygous   Homozygous
b.
Ear Shape   Heart Sidedness
Homozygous   Homozygous
c.
Ear Shape   Heart Sidedness
Homozygous   Heterozygous
d.
Ear Shape   Heart Sidedness
Heterozygous   Heterozygous
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Replies
wrote...
#1
Educator
6 years ago
Mr. Spook's father is vulcan, so he's PPRR, his mother is pprr

Therefore, he has to be PpRr

Heterozygous for both traits.
Quote from: Aliya1 (6 years ago)
d.
Ear Shape   Heart Sidedness
Heterozygous   Heterozygous
Answer accepted by topic starter
bio_manbio_man
wrote...
#2
Educator
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6 years ago
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